G6 Mock Exam T2 final

What is the primary function of the Nervous system?

• Transport nutrients and oxygen

• Control body functions and respond to stimuli

• Produce hormones

• Protect against diseases

What does a dominant allele do?

• Always causes a trait to be expressed

• Has no effect on the phenotype

• Only expresses a trait when paired with another

• Is less common than recessive alleles

What is a phenotype?

• The genetic makeup of an organism

• The observable traits of an organism

• A variation of a gene

• A type of chromosome

Which of the following is an example of a trait?

• DNA

• Eye color

• Chromosome

• Gene

What is the role of chromosomes in heredity?

• Store energy

• Contain DNA

• Create proteins

• Protect the cell

What does the term 'inheritance' refer to?

• The process of natural selection

• The passing of traits from parents to offspring

• The creation of new cells

• The function of enzymes

Photoreceptors are found in your _____.

• skin

• mouth

• eyes

• ears

Which senses are most closely related ____?

• taste and hearing

• hearing and smell

• touch and smell

• smell and taste

Which process is involved in the movement of molecules from an area of high concentration to an area of low concentration?

• Active transport

• Evaporation

• Diffusion

• Filtration

What is a recessive trait?

• A trait that is always expressed

• A trait that is only expressed when two recessive alleles are present

• A trait that cannot be inherited

• A trait that is more common than dominant traits